1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portlet.journal.util.comparator;
24  
25  import com.liferay.portal.kernel.util.DateUtil;
26  import com.liferay.portal.kernel.util.OrderByComparator;
27  import com.liferay.portlet.journal.model.JournalArticle;
28  
29  /**
30   * <a href="ArticleCreateDateComparator.java.html"><b><i>View Source</i></b></a>
31   *
32   * @author Brian Wing Shun Chan
33   */
34  public class ArticleCreateDateComparator extends OrderByComparator {
35  
36      public static String ORDER_BY_ASC = "createDate ASC";
37  
38      public static String ORDER_BY_DESC = "createDate DESC";
39  
40      public static String[] ORDER_BY_FIELDS = {"createDate"};
41  
42      public ArticleCreateDateComparator() {
43          this(false);
44      }
45  
46      public ArticleCreateDateComparator(boolean asc) {
47          _asc = asc;
48      }
49  
50      public int compare(Object obj1, Object obj2) {
51          JournalArticle article1 = (JournalArticle)obj1;
52          JournalArticle article2 = (JournalArticle)obj2;
53  
54          int value = DateUtil.compareTo(
55              article1.getCreateDate(), article2.getCreateDate());
56  
57          if (_asc) {
58              return value;
59          }
60          else {
61              return -value;
62          }
63      }
64  
65      public String getOrderBy() {
66          if (_asc) {
67              return ORDER_BY_ASC;
68          }
69          else {
70              return ORDER_BY_DESC;
71          }
72      }
73  
74      public String[] getOrderByFields() {
75          return ORDER_BY_FIELDS;
76      }
77  
78      public boolean isAscending() {
79          return _asc;
80      }
81  
82      private boolean _asc;
83  
84  }